The purpose of this study was to determine the effect of trust, perceived benefits and perceived convenience on buying interest at online shop Bukalapak. The sample in this study were 100 respondents. The analysis technique uses multiple linear regression analysis. The results showed that partially the trust variable and perceived ease of use had an effect on buying interest, while the perceived benefit variable had no effect on buying interest. Trust, perceived benefits and perceived ease of use together affect buying interest in the online shop Bukalapak. The adjusted R square value is 0.502, this means that 50.2% buying interest can be explained by the independent variables Trust, perceived benefits and perceived ease of use, while the rest (100%-50.2% = 49.8%) is 49.8% explained by factors others not investigated.